
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Div闪烁</title>
<style type="text/css">
#box{position:absolute;top:50%;left:50%;color:#fff;width:200px;height:200px;background:red;cursor:pointer;letter-spacing:5px;text-align:center;font:12px/200px Arial;margin:-100px 0 0 -100px;}
</style>
<script type="text/javascript">
window.onload = function ()
{
    var oBox = document.getElementById("box");
    var timer = null;       
    
    oBox.onclick = function ()
    {           
        var i = 0;  
        clearInterval(timer);
        timer = setInterval(function () {
            oBox.style.display = i++ % 2 ? "none" : "block";
            i > 6 && (clearInterval(timer))
        }, 80)
    }
};
</script>
</head>
<body>
<div id="box">点击我就闪</div>
</body>
</html>
